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Finding the Third Proportional to 763.50 and 1,441.50

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Solution

The third proportional to 763.50 and 1,441.50 is: 2,721.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    763.50 : 1,441.50 = 1,441.50 : x
  2. Step 2: Convert to fraction form
    763.50/1,441.50 = 1,441.50/x
  3. Step 3: Cross multiply
    763.50x = 1,441.50 × 1,441.50
  4. Step 4: Simplify right side
    763.50x = 2,077,922.25
  5. Step 5: Solve for x
    x = 2,077,922.25/763.50
  6. Step 6: Final answer
    x = 2,721.57

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Why These Related Problems?

These problems maintain the same ratio (1.89) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.